Sep 19 14:38:20.041 INFO checking SimonSapin/rust-on-bbc-microbit against try#fcacde07b66fe513e52c41b73aef91bcc121905b for pr-54346 Sep 19 14:38:20.041 INFO running: cargo +fcacde07b66fe513e52c41b73aef91bcc121905b-alt check --frozen --all --all-targets Sep 19 14:38:20.041 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54346/try#fcacde07b66fe513e52c41b73aef91bcc121905b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-7/try#fcacde07b66fe513e52c41b73aef91bcc121905b:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +fcacde07b66fe513e52c41b73aef91bcc121905b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"` Sep 19 14:38:20.551 INFO blam! 2f360a0e5b36420724a4f12a9fcf02c3fb981758602bfc6e02af2efae473e501 Sep 19 14:38:20.559 INFO running `"docker" "start" "-a" "2f360a0e5b36420724a4f12a9fcf02c3fb981758602bfc6e02af2efae473e501"` Sep 19 14:38:22.016 INFO kablam! usermod: no changes Sep 19 14:38:22.063 INFO kablam! Checking rust-on-bbc-microbit v0.1.0 (/source) Sep 19 14:38:22.193 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt` Sep 19 14:38:22.193 INFO kablam! --> src/lib.rs:29:1 Sep 19 14:38:22.193 INFO kablam! | Sep 19 14:38:22.193 INFO kablam! 29 | #[lang = "panic_fmt"] Sep 19 14:38:22.193 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt` Sep 19 14:38:22.193 INFO kablam! Sep 19 14:38:22.193 INFO kablam! error: `#[panic_handler]` function required, but not found Sep 19 14:38:22.193 INFO kablam! Sep 19 14:38:22.311 INFO kablam! error: aborting due to 2 previous errors Sep 19 14:38:22.311 INFO kablam! Sep 19 14:38:22.311 INFO kablam! For more information about this error, try `rustc --explain E0522`. Sep 19 14:38:22.317 INFO kablam! error: Could not compile `rust-on-bbc-microbit`. Sep 19 14:38:22.317 INFO kablam! warning: build failed, waiting for other jobs to finish... Sep 19 14:38:22.367 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt` Sep 19 14:38:22.367 INFO kablam! --> src/lib.rs:29:1 Sep 19 14:38:22.367 INFO kablam! | Sep 19 14:38:22.367 INFO kablam! 29 | #[lang = "panic_fmt"] Sep 19 14:38:22.367 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt` Sep 19 14:38:22.367 INFO kablam! Sep 19 14:38:22.367 INFO kablam! error[E0152]: duplicate lang item found: `eh_personality`. Sep 19 14:38:22.367 INFO kablam! --> src/lib.rs:44:1 Sep 19 14:38:22.367 INFO kablam! | Sep 19 14:38:22.367 INFO kablam! 44 | extern fn eh_personality() {} Sep 19 14:38:22.367 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Sep 19 14:38:22.367 INFO kablam! | Sep 19 14:38:22.367 INFO kablam! = note: first defined in crate `panic_unwind`. Sep 19 14:38:22.367 INFO kablam! Sep 19 14:38:22.467 INFO kablam! error: aborting due to 2 previous errors Sep 19 14:38:22.467 INFO kablam! Sep 19 14:38:22.467 INFO kablam! Some errors occurred: E0152, E0522. Sep 19 14:38:22.467 INFO kablam! For more information about an error, try `rustc --explain E0152`. Sep 19 14:38:22.471 INFO kablam! error: Could not compile `rust-on-bbc-microbit`. Sep 19 14:38:22.471 INFO kablam! Sep 19 14:38:22.471 INFO kablam! To learn more, run the command again with --verbose. Sep 19 14:38:22.475 INFO kablam! su: No module specific data is present Sep 19 14:38:23.419 INFO running `"docker" "rm" "-f" "2f360a0e5b36420724a4f12a9fcf02c3fb981758602bfc6e02af2efae473e501"` Sep 19 14:38:23.719 INFO blam! 2f360a0e5b36420724a4f12a9fcf02c3fb981758602bfc6e02af2efae473e501